Oatey water soluble tin flow, Oatey, series: H-2095, 1.7 oz capacity, 7 g/l VOC, 20,000 - 40,000 cPs viscosity, 3 - 4 pH, paste, composition: glycerine, Triethanolamine. Hhydrochlorchlorchlorchlorchlorchlorid, zinc chloride, ammonium chloride, greenish grey, light smell/fragrance, flammability: 0, SF813, flammability: 813. Only water-soluble tin flux base according to ASTM b-813. As thick as no 5 flux. Soldering powder added to pre-tin the tube.